For some strange reason, if you maximized a windows in Vista, it always displayed the exact same black titlebar. The reasoning had to have something to do with making the title bar a lot smaller and out of the way than in previous versions (which I like), but also makes it inconsistent with your color system (which I don’t like). Actually, the real reason is to make the title bar match the black taskbar, which is kind of silly reasoning, but I see where they’re coming from.
Anyway, Microsoft’s Shell Revealed blog announces the final version will have a bit of a compromise: The title bar will be a mix of the user’s chosen color, and a bit of dark black, so bright colors will still be noticeable. They have some screenshots of what this’ll look like here. Sounds fair, although it would be even more effective if you could change the color of the taskbar as well. I get that Microsoft has some big ideas on UI design, but that doesn’t mean you shouldn’t let users be as stupid as they want to be.
After all, a lack of choice is a Mac feature.